September 22, 2015 – Frictional Games, creators of the Amnesia and Penumbra series, presents SOMA. Plunging into the abyss to tear at the delicate threads of human consciousness, SOMA is available today on PlayStation 4 and PC.

Creative Director Thomas Grip, reflecting on the development of SOMA:

"Five years ago, SOMA started as a simple idea; to make a game that would explore the more disturbing aspects of what it means to be a conscious being. Since then, we have gone through years of iterations, lots of hard work and almost tripled the size of our team. And finally, today, the game is done. We are very proud of how it has turned out, and feel that we have achieved what we set out to do. It has easily been the most ambitious project we have undertaken, and getting to this point has been quite a struggle. We hope people find SOMA to be a creepy and provocative experience that stays with them long after playing."

The radio is dead, food is running out, and the machines have started to think they are people. Underwater facility PATHOS-II has suffered an intolerable isolation and we’re going to have to make some tough decisions. What can be done? What makes sense? What is left to fight for?

From Frictional Games, creators of Amnesia: The Dark Descent, SOMA is a sci-fi horror game that questions our concepts of identity, consciousness, and what it means to be human.

SOMA is available for $29.99 on PS4 via the PlayStation Store, and for PC (Windows/Mac/Linux) via digital distributors including Steam, GOG.com, and Humble Store.

Just wanted to say that, I have played around half way through (not sure, till thelta) and so far it has been reaaaaalllyyy enjoyable game. If i take it as 'horror game', I have to admit, it has been dissapointing a bit so far, however. I cant say full thoughts till I have actually finished it and maybe I am just a bit more used to horrors nowdays. Also, I am happy, that you just didn't fill it with all the jumpscares. Atmosphere is amazing and I am even more excited to return to this community to create some kind of custom story with all the new amazing tools!

Thanks, but that is a month out of date. What I need is a Yes/No answer instead of being bounced to a 440 page out of date topic.
If buying from Steam, do you need the steam client running to play the Mac/Linux version. I know the windows version has a non steam executable so you don't have to use the steam stuff like cloud or achievements etc.